package TankWar;

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.util.List;

public class Tank {
    public static final int XSPEED = 10;
    public static final int YSPEED = 10;

    public static final int WIDTH = 30;
    public static final int HEIGHT = 30;

    private boolean live = true;
    private BloodBar_G bb_G=new BloodBar_G();
    private BloodBar_B bb_B=new BloodBar_B();

    private int life =100;

    public int getLife() {
        return life;
    }

    public void setLife(int life) {
        this.life = life;
    }

    private class BloodBar_G{
        public void draw(Graphics g){
            Color c=g.getColor();
            g.setColor(Color.RED);
            g.drawRect(x,y-5, WIDTH,5);
            int w=WIDTH*life/100;
            g.fillRect(x, y-5, w, 5);
            g.setColor(c);
        }

    }
    private class BloodBar_B{
        public void draw(Graphics g){
            Color c=g.getColor();
            g.setColor(Color.GREEN);
            g.drawRect(x,y-5, WIDTH,5);
            int w=WIDTH*life/100;
            g.fillRect(x, y-5, w, 5);
            g.setColor(c);
        }
    }
    public boolean isLive() {
        return live;
    }

    public void setLive(boolean live) {
        this.live = live;
    }

    TankClient tc;

    private boolean good;

    private int oldX, oldY;

    public boolean isGood() {
        return good;
    }

    int x, y;

    private static Random r = new Random();

    private boolean bL = false, bU = false, bR = false, bD = false;

    //enum Direction {L, LU, U, RU, R, RD, D, LD, STOP};

    private Direction dir = Direction.STOP;
    private Direction ptDir = Direction.D;

    private int s_step = r.nextInt(100) + 3;
    private int step = s_step;

    public Tank(int x, int y, boolean good) {
        this.x = x;
        this.y = y;
        this.oldX = x;
        this.oldY = y;
        this.good = good;
    }

    public Tank(int x, int y, boolean good, Direction dir, TankClient tc) {
        this(x, y, good);
        this.dir = dir;

        this.tc = tc;
    }

    public void draw(Graphics g) {

        if (!live) {
            if (!good) {
                tc.tanks.remove(this);
            }
            return;
        }
        Color c = g.getColor();
        if (good)
            g.setColor(Color.RED);
        else
            g.setColor(Color.BLUE);
        g.fillOval(x, y, WIDTH, HEIGHT);
        g.setColor(c);

        if(good)bb_G.draw(g);
        if(!good)bb_B.draw(g);

        move();
        switch (ptDir) {
            case L:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x, y
                        + Tank.HEIGHT / 2);
                break;
            case LU:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x, y);
                break;
            case U:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH
                        / 2, y);
                break;
            case RU:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH,
                        y);
                break;
            case R:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH,
                        y + Tank.HEIGHT / 2);
                break;
            case RD:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH,
                        y + Tank.HEIGHT);
                break;
            case D:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH
                        / 2, y + Tank.HEIGHT);
                break;
            case LD:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x, y
                        + Tank.HEIGHT);
                break;
        }
        if (this.dir != Direction.STOP) {
            this.ptDir = this.dir;
        }
    }

    void move() {
        this.oldX = x;
        this.oldY = y;
        switch (dir) {
            case L:
                x -= XSPEED;
                break;
            case LU:
                x -= XSPEED;
                y -= YSPEED;
                break;
            case U:
                y -= YSPEED;
                break;
            case RU:
                x += XSPEED;
                y -= YSPEED;
                break;
            case R:
                x += XSPEED;
                break;
            case RD:
                x += XSPEED;
                y += YSPEED;
                break;
            case D:
                y += YSPEED;
                break;
            case LD:
                x -= XSPEED;
                y += YSPEED;
                break;
            case STOP:
                break;
        }
        if (this.dir != Direction.STOP) {
            this.ptDir = this.dir;
        }
        if (x < 0)
            x = 0;
        if (y < 30)
            y = 30;
        if (x + Tank.WIDTH > TankClient.GAME_WIDTH)
            x = TankClient.GAME_WIDTH - Tank.WIDTH;
        if (y + Tank.HEIGHT > TankClient.GAME_HEIGHT)
            y = TankClient.GAME_HEIGHT - Tank.HEIGHT;
        if (!good) {
            Direction[] dirs = Direction.values();
            if (step == 0) {
                step = s_step;
                int rn = r.nextInt(dirs.length);
                dir = dirs[rn];
            }
            step--;
            if (r.nextInt(100) > 95)
                this.fire();
        }

    }

    private void stay() {
        x = oldX;
        y = oldY;
    }

    public void keyPressed(KeyEvent e) {

        int key = e.getKeyCode();
        switch (key) {
            case KeyEvent.VK_F2:
                if(!this.live){
                    this.live=true;
                    this.life=100;
                }
                break;
            case KeyEvent.VK_SPACE:
                fire();
                break;
            case KeyEvent.VK_LEFT:
                bL = true;
                break;
            case KeyEvent.VK_UP:
                bU = true;
                break;
            case KeyEvent.VK_RIGHT:
                bR = true;
                break;
            case KeyEvent.VK_DOWN:
                bD = true;
                break;
            case KeyEvent.VK_A:
                superFire();
                break;
        }
        locateDirection();
    }

    void locateDirection() {
        if (bL && !bU && !bR && !bD)
            dir = Direction.L;
        else if (!bL && bU && !bR && !bD)
            dir = Direction.U;
        else if (!bL && !bU && bR && !bD)
            dir = Direction.R;
        else if (!bL && !bU && !bR && bD)
            dir = Direction.D;
        else if (bL && bU && !bR && !bD)
            dir = Direction.LU;
        else if (!bL && bU && bR && !bD)
            dir = Direction.RU;
        else if (!bL && !bU && bR && bD)
            dir = Direction.RD;
        else if (bL && !bU && !bR && bD)
            dir = Direction.LD;
        else if (!bL && !bU && !bR && !bD)
            dir = Direction.STOP;
    }

    public void KeyReleased(KeyEvent e) {
        int key = e.getKeyCode();
        switch (key) {
            case KeyEvent.VK_LEFT:
                bL = false;
                break;
            case KeyEvent.VK_UP:
                bU = false;
                break;
            case KeyEvent.VK_RIGHT:
                bR = false;
                break;
            case KeyEvent.VK_DOWN:
                bD = false;
                break;
        }
        locateDirection();
    }

    public Missile fire() {
        if (!live)
            return null;
        int x = this.x + Tank.WIDTH / 2 - Missile.WIDTH / 2;
        int y = this.y + Tank.WIDTH / 2 - Missile.WIDTH / 2;
        Missile m = new Missile(x, y, good, ptDir, this.tc);
        tc.missiles.add(m);
        return m;
    }
    public Missile fire(Direction dir){
        if (!live)
            return null;
        int x = this.x + Tank.WIDTH / 2 - Missile.WIDTH / 2;
        int y = this.y + Tank.WIDTH / 2 - Missile.WIDTH / 2;
        Missile m = new Missile(x, y, good, dir, this.tc);
        tc.missiles.add(m);
        return m;
    }
    private void superFire(){
        Direction[] dirs=Direction.values();
        for (int i=0;i<8;i++){
            fire(dirs[i]);
        }
    }

    public Rectangle getRect() {

        return new Rectangle(x, y, WIDTH, HEIGHT);
    }

    public boolean collidesWithWall(Wall w) {
        if (this.live && this.getRect().intersects(w.getRect())) {
            this.stay();
            return true;
        }
        return false;
    }

    public boolean collidesWithTanks(List<Tank> tanks) {
        for (int i = 0; i < tanks.size(); i++) {
            Tank t = tanks.get(i);
            if (this != t) {
                if (this.live && t.isLive()
                        && this.getRect().intersects(t.getRect())) {
                    this.stay();
                    t.stay();
                    return true;
                }
            }
        }
        return false;
    }


    public boolean eat(Blood b){
        if(this.live&&b.isLive()&&this.getRect().intersects(b.getRect())){
            this.life=100;
            b.setLive(false);
            return true;
        }
        return false;
    }


}

